US Patent Issued to KIOXIA on July 8 for "Semiconductor memory device and method of manufacturing the same" (Japanese Inventor)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,356,621, issued on July 8, was assigned to KIOXIA Corp. (Tokyo).

"Semiconductor memory device and method of manufacturing the same" was invented by Shinya Arai (Yokkaichi Mie, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor memory device according to an embodiment comprises: a semiconductor substrate; a stacked body having a plurality of first insulating layers and conductive layers stacked alternately on the semiconductor substrate; a columnar semiconductor layer contacting the semiconductor substrate in the stacked body being provided extending in a stacking direction of the stacked body and including a first portion and a second p...